Linear friction welding welds materials together using heat from friction. After placing two materials into a welding machine they are then pushed tightly together. One of the two materials moves ...

The materials used here are non-woven goods often used in disposable PPE like face masks, disposable aprons, and shoe coverings. The common tool used to fuse non-woven fabrics at the seams is an ...

Mike Herrington said they believe the suspect used scrap metal to create the devices ... about explosives or incendiary devices and/or welding metal. “I have to emphasize that this person ...